Update README.md

README.md

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 ### How to contribute
-If you want to contribute to the dataset, the best way is to help us develop pipeline components for further processing. Components
-we are currently looking to add are the following ([GitHub issues](https://github.com/ml6team/fondant/issues?q=is%3Aissue+is%3Aopen+label%3A%22Component+Contribution%22)):
+
+If you want to contribute to the dataset, the best way is to help us develop pipeline components for further processing. 
+
+Creating custom pipelines for specific purposes requires different building blocks. 
+Fondant pipelines can mix reusable components and custom components. 
+
+
+![image/png](https://cdn-uploads.huggingface.co/production/uploads/6266919100f1a3335dbd966f/a3IM5qWNUw0mv2r8t3_oN.png)
+
+Components we are currently looking to add are the following ([GitHub issues](https://github.com/ml6team/fondant/issues?q=is%3Aissue+is%3Aopen+label%3A%22Component+Contribution%22)):
+
 - 👯 Image-based deduplication
 - 🖥️✎ Automatic captioning
 - 🎨 Visual quality / aesthetic quality estimation